<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <div id="app">
    <input v-model="hobby" type="checkbox" value="打篮球">打篮球
    <input v-model="hobby" type="checkbox" value="打羽毛球">打羽毛球
    <input v-model="hobby" type="checkbox" value="打乒乓球">打乒乓球
    <input v-model="hobby" type="checkbox" value="踢足球">踢足球
    <p>-------------------</p>
    <div>选择的爱好: {{ hobby.join(',') }}</div>
  </div>
  <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
  <script>
    const app = new Vue({
      el: '#app',
      data: {
        hobby: []
      },

    })
  </script>
</body>

</html>